U.S. imports of Hot or Combination Hot & Cold Metal Rolling Mills (Except Tube Mills) (HS 845521) totaled $1.5M in August 2026, imported from 24 countries.
Importers of Hot or Combination Hot & Cold Metal Rolling Mills (Except Tube Mills) paid $160K in duties in August 2026, an average duty rate of 10.50% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Hot or Combination Hot & Cold Metal Rolling Mills (Except Tube Mills) imports of $1.5M in August 2026 ran 75% below the year-to-date monthly average of $6.1M.
Last updated: August 2026 dataHot rolling mills and combination hot/cold rolling mills are capital-intensive steelmaking assets used to reduce metal slabs, billets, and blooms into sheet, strip, plate, and structural profiles. Italy and Germany are the leading US suppliers under this heading, reflecting the concentration of precision mill-building expertise in European industrial machinery clusters. The single 10-digit line 8455210000 captures the full heading, so classification disputes typically turn on whether a mill is configured primarily for hot or cold reduction, or whether it qualifies as a tube mill excluded from this subheading. Importers should also assess Section 232 exposure, which can apply to certain steel-related capital equipment depending on configuration.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
19 import shipments a month
A combination mill is designed to perform both hot and cold reduction passes in a single integrated line or reversing stand. If the mill is engineered exclusively for cold reduction without any hot-rolling capability, it falls under 845522 instead. The key classification evidence is the mill's design specifications, temperature range, and whether the hot-rolling function is integral or merely incidental.
Yes — tube mills are explicitly excluded from 845521. Rolling mills designed specifically to form tubular products classify elsewhere in Chapter 84. Importers should review the mill's engineering drawings and intended end-use to confirm the correct heading before entry.
Subheading 5 of 5 in heading 8455
Subheading 845521 · $1.5M of $61.3M
ImportsExports
Imports
$1.5MYoY · free account
Exports
$23KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $71.7M of Hot or Combination Hot & Cold Metal Rolling Mills (Except Tube Mills).
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 845521 — Hot or Combination Hot & Cold Metal Rolling Mills (Except Tube Mills), so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8455210000 | Hot or Combination Hot & Cold Roll Mill Exc Tube | $1.5M | 10.50% | 95.65% | $160K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8455210000 | Hot or Combination Hot & Cold Roll Mill Exc Tube | $23K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Italy and Czech Republic together supply 66% of it. Italy pays 10.0% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
4.3% enters free of duty; duty collected equals 10.50% of imports for consumption.